The students, still understrength during the BUCS Super League period, got off to a flying with an early try and also added a penalty in a tight first-half. Then the floodgates opened as Trebanos opened up and scored five second half tries.
It was a penalty try that got them started and then back row man Ben Williams, prop Tyler Murvai, ex-Cyncoed student and wing Sam Davies and hooker Elliot Greenaway got over the home line to bag another bonus point. Full back Matthew Edwards added two conversions and a penalty.
Tata Steel stayed tied on 21 points with Trebanos in second place in the table thanks to a 47-5 home win over Glynneath, while Skewen are in fourth place after their 40-21 bonus-point triumph at home over Newbridge.
Beddau gave Pontypool plenty to think about in the opening exchanges at Pontypool Park as they raced into a 10 point lead. After that, though, it was one way traffic until they grabbed a late consolation score at the death,
The home side made it six of the best at the start of their title defence to ensure they stayed eight points clear at the top of Trebanos and Tata Steel. Having shipped 10 points early on tries from Ethan Davies and Rob Nash, one of which Matthew Jones converted, gave them a 12-10 interval lead.
If it was tight at half-time, the second half saw the champions run riot with eight more tries. Davies and Nash got one more each and Clayton Gullis marked his 100th appearance with a try.
Newcastle Emlyn skipper Alex Williams scored a first half try to go with a Dan Davies penalty that gave his side an 8-6 interval lead over visiting Rydyfelin. Dai Gratton kicked two penalties in each half for the newly promoted side to give them a 12-8 advantage as the game moved int the final five minutes.
But then the home side launched a telling move that ended with wing Llyr Jones stealing the glory with a last gasp try that sealed a 13-12 win to move them seven points clear of the drop zone.